Cesium tungsten bronze has excellent transparent heat insulation properties, so it is often used to prepare a new type of transparent heat insulation coating, which is environmentally friendly with long service life. According to experts, the reason why cesium tungsten bronze absorbs infrared light lies in carriers. In addition, with the development of nanotechnology and its application in the field of heat insulation, cesium tungsten bronze nanoparticles have also received more and more researchers’ attention. So, why not know something about the preparation of cesium tungsten bronze?
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The existing production process of cesium tungsten bronze is mainly the high temperature solid phase reaction of the raw materials tungsten and cesium. For example, the tungsten bronze crystal phase structure is first formed at about 600 °C, and then the reduction treatment is performed in a reducing atmosphere at about 800 °C to form cesium tungsten bronze nanoparticles with high carrier concentration. This process has the advantages of simple operation and stable batches. But there are problems with large particles. Usually at the micron level, in order to achieve the transparency of the coating, long-term grinding of high-end dispersing equipment is required to make the particle size smaller than 100nm, while it greatly increases the cost. Besides, the presence of large particles makes the haze of coating larger, affecting the optical effect of the coating.